Advertisements
Advertisements
प्रश्न
Name the function of the following:
Corpus luteum
State the main function of the Corpus luteum
उत्तर
It secretes progesterone, a hormone that prepares the uterus for implantation. If implantation fails, the corpus luteum goes inactive and degenerates. If an embryo is implanted, the corpus luteum continues to release progesterone until the fourth month of pregnancy, when the placenta takes over this function.
APPEARS IN
संबंधित प्रश्न
Why is follicular phase in the menstrual cycle also referred as proliferative phase? Explain.
What is menstrual cycle? Describe it in brief.
Observe the figure and answer the questions given below.
a) What does the above figure indicate?
b) Which human organs are involved in this process?
c) Name the hormones responsible for this process.
d) After how many days these repetitive changes take place?
e) ‚A woman should stay away from others, as her body is impure during this process.‛ What is your opinion about this statement? Elaborate it.
Choose the correct answer from the four options given below :
On which day of the menstrual cycle does ovulation take place ?
Give Reasons
The chances of pregnancy to occur are most favourable on or about the 14th day of the menstrual cycle. Explain.
Name the Following
Sloughing of the uterine wall during menstrual flow.
Meanrch, menstrual cycle, and menopause are controlled by ______.
Read the following passage and answer the question that follows:
Rahini and her parents were watching a television programme. An advertisement flashed on the screen which was promoting the use of sanitary napkins. Rahini’s parents suddenly changed the channel, but she objected to her parents and explained the need and importance of such an advertisement.
What is first menstruation called? When does it occur?
Read the following passage and answer the question that follows:
Rahini and her parents were watching a television program. An advertisement flashed on the screen which was promoting the use of sanitary napkins. Rahini’s parents suddenly changed the channel, but she objected to her parents and explained the need and importance of such an advertisement.
List out the napkin hygiene measures taken during menstruation?
If the corpus luteum is present in the ovary even after 72 hours after ovulationit indicates that ______.
Match the Columns.
| Column I | Column II | ||
| i. | Proliferative phase | a. | Breakdown of the endometrial lining |
| ii. | Secretory phase | b. | Follicular phase |
| iii. | Menstruation | c. | Luteal phase |
Calculate the expected date of ovulation, if in a normal menstruating woman, gets her menses on 5th April.
Which one of the following events is correctly matched with the time period in a normal menstrual cycle?
The endometrium in the female is the lining of ______.
A biology student after studying the different levels of hormones during the menstrual cycle was comparing 2 subjects (Patients). A table was created after looking at the levels of hormones A and B for Subjects 1 and 2. Read the information in the table and answer the question that follows.
| HORMONE A | HORMONE B | |
| Subject 1 | Shows a peak on the 14th Day of the menstrual cycle. | Falls down during the luteal phase. |
| Subject 2 | Shows a peak on the 14th Day of the menstrual cycle. | The level is maintained high in the luteal phase. |
Which of the following statements is true about the subjects?
Hormones responsible for menstrual cycle are produced from ______.
Define ovulation.
When does the corpus luteum degenerate?
Menstrual flow occurs due to lack of ______.
The secretory phase in the human menstrual cycle is also called:
Mention the importance of LH surge during menstrual cycle.
A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.
What are the events taking place in the ovary and uterus during follicular phase of the menstrual cycle.
In the figure given below, parts A and B show the level of hormones which influence the menstrual cycle. Study the figure and answer the questions that follow:
- Name the organs which secrete the hormones represented in parts A and B.
- State the impact of the hormones in part B on the uterus of the human female during 6 to 15 days of the menstrual cycle.
Answer the following questions by observing the diagram of menstrual cycle:
- What is the period of menstruation?
- On which day does ovulation occur during the menstrual cycle?
- In the menstrual cycle which reproductive organs undergo changes?
- Which period is said to be the period of regeneration of endometrium?
- Which period is said to be the period of secretions of glands in endometrium?
The graph given below shows the number of primordial follicles per ovary in women at different ages. Study the graph and answer the questions that follow.
- What is the average age of the women at the onset of menopause?
- At what age are maximum primordial follicles present in the ovary, according to the given graph?
The enlarged mature follicle bursts to release the egg.
Name the following:
Two layers of the wall of uterus.
Name these:
4 phases of the menstrual cycle.
